Maybe good quality, but don't know for sure.

Bought these rotors to replace warped rotors. Rotors appear to be of decent quality. However, there is a slight vibration when I apply the brakes. I don't know if these rotors were warped during shipment due to the fact that the box these rotors were in were inadequately packed or not. Since I threw away the old rotors, I have no way of sending these back for warranty.